package com.antrain.ssm.service;

import com.antrain.ssm.pojo.User;
import com.antrain.ssm.util.PageResult;
import com.antrain.ssm.util.PageUtil;

public interface UserService {
    int insert(User user);

    int del(int id);

    int update(User user);

    User queryById(int id);

    PageResult queryUsers(PageUtil pageUtil);
}